From FRONTLINE's reporting team for the "Drug Wars" series, reports on
narco dollars' infiltration of legitimate businesses; the black peso money
laundering scheme; and "Do the Math," a primer on why the illegal drug trade is an
ever-expanding global business.

From kingpins to mid-level businessmen to street level dealers--seven narco
traffickers tell how they set themselves up in business and stayed two steps
ahead of the law.

The DEA presents this overview of the major organizations supplying drugs to the
United States since the 1970s, including the Medellin and Cali cartels from
Colombia and Mexico's Arellano-Felix Organization. It also covers the major
trafficking routes and methods of transport.

The DEA calls the Arellano-Felix Organization "one of the most powerful, violent, and
aggressive" drug trafficking groups in Mexico today. This Tijuana-based
operation has for over ten years shipped tons of cocaine, methamphetamine and
heroin annually into the United States. A video report tells the story
of the educated young men from the Tijuana-San Diego area whom the AFO befriends and
recruits; articles and interviews with U.S. drug agents explain why the AFO has
been able to survive so long.

What Cali and Medellin are to Colombia's traffickers, Culiacan is to Mexico's.
It is a city in northwest Mexico where a patron saint of narco traffickers
is worshipped and where souvenir shops sell items commemorating the drug
culture. Here are two reports, one by journalist Sam Quinones from his forthcoming
book on Mexico.

From 1978 to 1982 this tropical island was a refueling hub for Carlos Lehder
and the Medellin cartel's operation that shipped tons of cocaine into the
U.S. via small aircraft. Narco trafficker Carlos Toro called Norman's Cay "a
Sodom and Gomorrah" of drugs and sex binges. Trafficker George Jung described
it as "something out of a James Bond movie." And U.S. drug agents say they
realized too late what was going on there. Here are pictures and a short
report.

This report offers an inside look at a 1999 FBI investigation on the
edge of Silicon Valley which uncovered a distribution chain of drug money and cocaine connecting California,
Mexico and Colombia.